Antique radios, Old Time Radios
4C27
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Country:
Worldwide
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| Identical to |
4C27
= REL7
= 8026
= CV92
= NT99
= E1232
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| Similar
Tubes |
Normally replaceable-slightly different:
CV1256
; CV199
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| First Source
(s) |
21.Oct.1946 : Electron Tube Registration List 530
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Successor Tubes
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4C29
4C28
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| Base |
Wires
Sidecontact and top contact.
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| Was used by |
Radar |
| Filament |
Vf 6 Volts / If 6.5 Ampere / Half indirect |
| Description |
UHF transmitting triode, micropup shape, external copper anode with brass radiator. Oxide coated unipotential cathode. Two 4C27s gave up to 150 kW pulse output at 200 MHz in grounded-plate circuit. Used in the transmitters of SCR-602A and of SCR-636A. Multiple markings usually found as in the Canadian REL 7, also marked CV92, 10E/CV92 and 4C27.
- 150 W anode power dissipation with forced-air cooling
- 50 A typical cathode emission
- Usable at 600 MHz
During WWII several manufacturers built tubes interchangeable with the British CV92. These tubes came with multiple markings, British, Canadian and US.
RMA code 4C27 was registered to National Union after the war. Also manufactured by Central Electronics Mfrs. Inc.
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Dimensions (WHD)
incl. pins / tip |
x 133 x 52 mm / x 5.24 x 2.05 inch |
| Weight |
197 g / 6.95 oz |
| Information source |
15 éve Standard Radio, Ungarn
Tube Lore (I)
-- Collector info (Sammler)
Tube Lore (II)
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4C27: Manufacturer's Literature
Emilio Ciardiello
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Collection of
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